Continuity: 1-6 A Gummi By Any Other Name: When Cavin climbs the wall of the prison tower, he accidentally dislodges a stone which falls onto the helmet of the ogre guard beneath. But in order to do so, it would have had to fall round a third of the tower's width, since Cavin is climbing out of the guard's sight.

Continuity: 1-9 The Secret of the Juice: When Tummi goes looking for Zummi, Gruffi and Cubbi, he arrives right outside the barrel room. When first seen, the barrel room door is smooth, but in the next close-up the door suddenly has an iron grill window in its surface.

Continuity: 1-6 "A Gummi By Any Other Name": First Cavin runs out of the prison tower, then the Gummis (Sunni, Tummi and Grammi), and then Igthorn, each of them smashing the door into the guard's face. But in the instant where the Gummis appear, Princess Calla is missing even though she is supposed to be with them.

Plot hole: 1-6 "A Gummi By Any Other Name": The Changing Hat has the habit of tranforming its wearer at the mere mention of a name (or even a species type, as seen before when Sunni accidentally transforms into an ogre). However, when Calla impersonates Igthorn and faces off against him, she loudly says the name "Toadwart" and doesn't transform.

Plot hole: 5-10 "Princess Trouble": The catapult King Jean-Claude accidentally triggers smashes the siege tower on which Calla and Marie are fighting over Sunni. But since Jean-Claude's catapults are all aimed at the walls of Dunwynn, how come it smashes the siege engines on its own side? Neither catapult nor tower were moved before the misfire occurs.

Continuity: 1-5 The Oracle: When the oracle confronts Tummi for his con game in the final scene, the square before it is empty. But just when Tummi promises never to eat again, two Gummiberry baskets suddenly appear to the left of the stone head's mouth.

Continuity: 0-0 Across wole show: Those ogres assigned to do certain tasks throughout the series sometimes change their overall looks - color, hair, and helmets - in several episodes, from one scene to the other.

Factual error: 2-7 "The Crimsom Avenger": At Dunwyn Erwyllan grabs a bundle of money bills from a fishmonger. It may be just a curiosity since paper money wasn't used in real medevial times, but it is still odd as gold coins are still in heavy use in all other episodes. Even the royal treasury, which is robbed in this very episode, has only bags of coins and no bundles of paper money.

Continuity: During most of this episode, Princess Calla wears ragged peasant's clothing. But in the instant where she uses the Changing Hat to transform into Igthorn, she wears her usual princess dress.

Continuity: When the mechanical footprint machine topples, it lands with its heel up and its toes down. When we next see it, the toes are pointing up.